Water-saving Effect of Different Irrigation Patterns on Tomato in Sunlight Greenhouse

The experiment was conducted to investigate the effect of border,drip and sprinkler irrigation patterns on tomato in sunlight greenhouse.The results showed that drip irrigation saved 70.0% water than that of border irrigation in a growth season,relative humidity of the air lowered 10 percentage points,first flowering dates advanced 4 d earlier than that of border irrigation and 3 d earlier than that of sprinkler irrigation.The yield of drip irrigation treatment increased 6.9% and 10.7% than that of border irrigation and sprinkler irrigation,respectively.